The RadioWavz End Fed Half Wave (EFH) antenna product line was originally designed to provide channelized operations for Government operations that require single band (frequency) functionality. This is a great commercial product where individual frequency operations are desired. (Example: Oil Production , SCADA, NVIS, Utility hf communications,)
The application of the EFH (End Fed Half wave)antenna in the Amateur radio area is an optimum product for single band operation. With an external tuner out of designed frequency operation may be obtained.